youdesiremenow Report post Posted September 13, 2021 I have a Durkopp and not sure if it reads 231-02 or 237-02. I can't seem to find an ounce of information about this industrial machine. It seems nice some of the time and came with a roller foot. I would like to be able to adjust the stitches but it has no place I could find to lengthen them. I am thinking this machine was modified back in the day to be very specific. It came from a shoe repair shop and was part of a larger purchase. Any information would be greatly appreciated. thanks Peg Quote Share this post Link to post Share on other sites
Constabulary Report post Posted September 13, 2021 please post pictures of your machine from front back and underside. The 231-02 seems to be roller foot + wheel feed according to a list I have. I do not know the machine but I assume something similar to the Singer 110w which has 3 preset stitch length and you can change the stitch length by "shifting gears" - but I only can guess. Quote Share this post Link to post Share on other sites
youdesiremenow Report post Posted September 19, 2021 Quote Share this post Link to post Share on other sites
Constabulary Report post Posted September 19, 2021 (edited) as I said I do not know the machine but I´m almost certain when you loosening the thumb nut on the pats picture you can shift the gears or the shaft with the gears. Can you post a full view bottom side picture please? BTW the thread regulator spring needs adjustment. The tension unit is the same as on the Singer 110w / 111w and other. Edited September 19, 2021 by Constabulary Quote Share this post Link to post Share on other sites
youdesiremenow Report post Posted September 20, 2021 Quote Share this post Link to post Share on other sites